Given name & surname
Alejo
“helper and defender of mankind”
Alejo is a variant of Alejandro. In Spanish use, Alejandro carries the interpretation “helper and defender of mankind.”
Meaning & origin
What it means
Alejo is a variant of Alejandro. In Spanish use, Alejandro carries the interpretation “helper and defender of mankind.”
Explained through its name family
Where it comes from
Alejo is a form of Alexius. An origin associated with Alexius is Greek.
Explained through its name family
How it developed
In Spanish use, Alejo is used as a form of Alexius.
The story
Published U.S. birth records include this spelling as early as 1909. This is the earliest published observation available here, rather than a date for the name’s origin.
From dated birth records
Alejo through the years
- Babies since 1880
- 904
- 904 boys · 0 girls
- Most popular year
- 2025
- 22 babies
- 2025
- 22
- #4,544 for boys
- 2021–25 vs 2016–20
- +42%
- Rising
Where it’s given
By the numbers
In 2025, this name appeared in 22 U.S. birth records for boys, ranking No. 4,544 among boys’ names. Average annual use for boys was 42.3% higher in 2021–2025 than in 2016–2020. In 2025, California had the largest reported state-level birth count for boys with this name (6). Published U.S. population figures for this spelling include 2,001 as a first name in 2020; 6,292 as a surname in 2020.
From Social Security birth records and U.S. Census name counts for this exact spelling. Other spellings are counted separately.
Alejo’s family of names
In Esperanto usage, Alejo is a diminutive of Alex. In Spanish usage, Alejo shares a linguistic root with the English form Alexis. Alejo has a related form in Alejandro.
Inner ring: nicknames and forms · outer: across languages.
Around the world
Alejo has relatives in 10 languages.
11 related names in 10 languages. Point at a dot, or tab to the map and use the arrow keys.
Nicknames & forms 3
Diminutives, pet forms, short forms and variants used alongside the name.
Across languages 22
Equivalents and cognates in other languages, plus older forms it grew from.
People named Alejo
- Alejo CarpentierCuban-French writer and musicologist (1904–1980)
- Julio Argentino RocaArgentine politician and general, former president of Argentina (1843–1914)
- Alejo VélizArgentine association football playerborn 2003
- Alejo Vidal-Quadras RocaSpanish politician and physicist, former vice president of the European Parliament (1999-2014)born 1945
- Alejo SaurasSpanish actorborn 1979
- Alexius SlavBulgarian noble1200–1300
- Alejo MenchonArgentine association football playerborn 1982
- Alejo FernándezSpanish painter (1475-1545)1470–1543
- Alejo IgoaArgentine YouTuberborn 1996
Listed by how widely each person is written about, which says nothing about the name itself.
Similar names
If you love Alejo, these share its style, era, origin or sound, from outside its own family.
Alessandro
“helper and defender of mankind”
>99% boys
Apollo
Apollo is a masculine given name from Latin, ultimately from Ancient Greek. It is used in English and Polish.
>99% boys
Elio
Elio is a masculine given name from Ancient Greek. It is used in Spanish and Italian.
>99% boys
Alijah
Alijah is a masculine given name.
94% boys · 6% girls
Marcelo
“the little warrior”
>99% boys
Arlo
“from the barberry tree”
96% boys · 4% girls
Tadeo
“having heart”
>99% boys
Valentino
“one who is strong and healthy”
>99% boys